JOVYATLAS
UPS-division
Operating manual
POWERMASTER
M
MIL BAX 3330E page 15
9.
Remote control for 115V - Series
The UPS possesses a signal output at the rear side of the ups.
The serial interface serves to the data transfer between a PC and the UPS.
Even the inspection of the UPS can be done by PC. In case of mains failure the switch-off of the UPS is
possible.
Pin holding of the data transfer interface
PIN Description of the function
input / output
Contact rating
A
Reference earth for PIN B + C
output
TTL – Logic
B
RS 232 data output TX
output
TTL – Logic
C
Remote shutdown RX
output
TTL – Logic
D
Battery low, Battery discharged
input
TTL – Logic
E
Mains failure
input
TTL – Logic
F
Reference earth for PIN D + E (RTN)
input
TTL - Logic
Technical deviations are possible
10.
Maintenance
In case of longer standstill of the UPS (>= 4 weeks) the battery has to be charged monthly. For this charging
you only have to connect the UPS to the mains for a charging time of at least 8 hours.
However we recommend a charging time for about 24 hours.
The battery in its standard version is maintenance-free. Please note the hints of the battery-manufacturer in
case of using a special battery.
The ventilation slot at the backside of the UPS has to be clean, without any dust or something soiling to
prevent a reduced air-exchange. Please observe the necessary distance to surrounding walls of at least 100
mm.
Half a year you have to check up the perfect function of the UPS. Therefore you have to disconnect the UPS
from the mains with connected load / consumers.
We recommend the use of a remote control system in case of UPS systems which can’t be controlled directly.
